Objective evaluation of auditory evoked EEG responses
| Autor: | B M Sayers, Beagley Ha |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
Adult
Auditory Cortex medicine.medical_specialty Multidisciplinary medicine.diagnostic_test Fourier Analysis Electroencephalography Stimulus (physiology) Audiology Acoustic Stimulation Residual activity medicine Auditory stimuli Auditory Perception Waveform Humans Objective evaluation Spontaneous eeg Psychology Child Evoked Potentials |
| Zdroj: | Nature. 251(5476) |
| ISSN: | 0028-0836 |
| Popis: | THE averaging of often very small responses is widely used in physiology, psychology and clinical medicine to evaluate stimulus threshold levels. It is sometimes difficult to recognise responses in the average waveform because of residual activity, so a means of improving sensitivity and objectively recognising positive responses would be useful. We have previously found1 that the averaged responses (ERA) evoked in the electroencephalogram (EEG) of a subject by auditory stimuli were produced by imposing a phase constraint on the different Fourier harmonics of the spontaneous EEG, without necessarily influencing their amplitudes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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